PN16
BURKERT 387448 (Type 8652 AirLINE) is a factory-configured 12-slot pneumatic valve island engineered for process automation environments. The unit integrates an Industrial Ethernet fieldbus communication module supporting PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic via dual RJ45 ports. Valve positions 1 through 9 are fitted with Type 6534 servo-assisted 2x 3/2-way normally closed solenoid valves (Circuit Function C), while valve positions 10 through 12 are equipped with blind plates for future expansion. The assembly features an anodised aluminium AirLINE Quick base adapter for direct cabinet floor cut-out mounting, brass push-in fittings (D10 supply, D6 working ports), internal auxiliary pilot air supply, pneumatic HotSwap capability on line 1 (P), and integrated check valves in exhaust ports 3 (R) and 5 (S).
Specific Hardware Configuration
Article 387448 has a 12-slot physical manifold block without intermediate feed modules. Each active valve slice occupies an 11 mm width, delivering independent pneumatic pilot signals to process valves and actuators.
| Position / Attribute | Specification | Note |
|---|---|---|
| Valve Slot 1 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 2 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 3 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 4 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 5 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 6 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 7 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 8 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 9 | 2x 3/2-way CF-C | Servo-assisted, normally closed, 24 V DC |
| Valve Slot 10 | Blind plate | Reserve position |
| Valve Slot 11 | Blind plate | Reserve position |
| Valve Slot 12 | Blind plate | Reserve position |
| Supply Port (1/P) | Push-in D10 mm | Nickel-plated brass connection |
| Working Ports (2, 4) | Push-in D6 mm | Nickel-plated brass connection |
| Auxiliary Pilot Air | Internal feed | Routed from main supply port |
| Intermediate Feed | 0 PCE | Not fitted on 12-slot frame |
| Electronic DI Modules | None (0 DI) | Display module without DI contacts |
AirLINE Quick Adapter Base
Article 387448 utilizes the AirLINE Quick adapter plate made of anodised aluminium. This system enables direct mounting onto a rectangular cutout on the control cabinet wall or floor. Pneumatic supply and working lines connect externally beneath the cabinet floor, isolating hose routing from electrical components and reducing enclosure volume.
AirLINE Quick Features
- Material: Anodised aluminium adapter plate with nickel-plated brass pneumatic push-in fittings.
- Ingress protection: IP65 achieved inside the cabinet when properly installed on the cabinet cut-out with seals; IP20 protection class for the exposed island body.
- Eliminates bulkhead feedthrough connectors, minimizing installation labor and leak points.
Dimensional Specifications
Dimensions for 4-, 8-, and 12-slot configurations follow standard Type 8652 engineering data. Dimensions are stated in millimeters.
| Variant | A (mm) | B (mm) | C | m | n |
|---|---|---|---|---|---|
| 4-fold | 66 | — | 4 x M5 | 3 | 1 |
| 8-fold | 35 | 111 | 8 x M5 | 7 | 2 |
| 12-fold (387448) | 77 | 154 | 10 x M5 | 11 | 3 |
Installation on standard DIN rails (EN 50022 35 x 7.5 mm or 35 x 15 mm) is supported as an alternative to AirLINE Quick base installation.
Pneumatic Performance and Circuit Functions
Solenoid valves installed in slots 1 through 9 conform to Circuit Function C (CF C), containing two independent 3/2-way servo-controlled solenoid valves per slice with latching and spring-return manual overrides.
| Parameter | Specification |
|---|---|
| Circuit Function | 2x 3/2-way normally closed (CF C) |
| Width per station | 11 mm |
| Operating pressure | Vacuum to 10 bar (-1.0 bar to 10.0 bar) |
| Auxiliary pilot pressure | 3.0 bar to 10.0 bar |
| Nominal flow rate QNn | 310 l/min (air at +20 °C, 6 bar inlet pressure, 1 bar Δp) |
| Flow reduction with HotSwap | Approx. 3 % |
| Valve switching times | Opening: 15 ms; Closing: 15 ms (ISO 12238) |
| Operating medium | Dry compressed air, lubricated or non-lubricated; neutral gases |
| Compressed air quality | ISO 8573-1:2010 Class 7.4.4 (5 µm filtration recommended) |
| Operating mode | Continuous operation (100% duty cycle) |
Integrated Process Protection Features
- Check Valves in Exhaust Ducts 3 (R) and 5 (S): Factory-integrated non-return valves prevent exhaust back-pressure spikes from propagating through the valve island, preventing accidental actuation of unenergized pneumatic actuators.
- Pneumatic HotSwap in Port 1 (P): Integrated check valve mechanism isolates individual valve slices during live removal, allowing single-valve replacement while the remaining channels stay under full working pressure.
Operational Note on HotSwap in Hazardous Locations
HotSwap functionality must not be performed in potentially explosive atmospheres unless the area is positively proven to be non-hazardous with appropriate gas detection instruments.
Electrical and Fieldbus Connections
The 387448 valve island provides galvanic separation between communication/display electronics and pneumatic valve coil power supplies via distinct spring-loaded terminals.
Power Supply Terminal Assignments
| Connection | Terminal Type | Pin / Color | Signal Assignment |
|---|---|---|---|
| Communication & Display Power | 5-pin spring-loaded | Red | 24 V DC (±10%, residual ripple 1 Vss) |
| (Max. conductor ≤ 1.5 mm²) | White | CAN_H (büS connection) | |
| Green | Shielding | ||
| Blue | CAN_L (büS connection) | ||
| Black | GND (0 V DC) | ||
| Pneumatic Valve Coil Power | 2-pin spring-loaded | Pin 1 (Red) | AUX 24 V DC (±10%) |
| (Max. conductor ≤ 1.5 mm²) | Pin 2 (Black) | GND (0 V DC) |
Each valve coil consumes 0.7 W (29 mA) during inrush, automatically stepping down to 0.175 W (10 mA) in continuous holding mode.
Industrial Ethernet Interface (X1 and X2 RJ45)
Dual RJ45 sockets support line and star network topologies for PROFINET IO, EtherNet/IP, Modbus TCP, EtherCAT, and CC-Link IE Field Basic.
| Pin | RJ45 Signal Assignment | Description |
|---|---|---|
| 1 | TX+ | Transmit Data + |
| 2 | TX- | Transmit Data - |
| 3 | RX+ | Receive Data + |
| 4 | N.C. | Not connected |
| 5 | N.C. | Not connected |
| 6 | RX- | Receive Data - |
| 7 | N.C. | Not connected |
| 8 | N.C. | Not connected |
Replacement Components and Accessories
Standard spare parts and modular extension components for Type 8652 valve islands are listed below.
| Component Description | Circuit Function / Technical Spec | Article Number |
|---|---|---|
| Replacement Valve Type 6534 | 2x 3/2-way CF C (NC), 24 V DC, 270 l/min | 301374 (REF 296031) |
| Replacement Valve Type 6534 | Single 3/2-way CF C (NC), 24 V DC, 270 l/min | 20102334 (REF 20088974) |
| Replacement Valve Type 6534 | 2x 3/2-way CF D (NO), 24 V DC, 310 l/min | 301375 (REF 296032) |
| Replacement Valve Type 6534 | 5/2-way CF H, 24 V DC, 290 l/min | 301376 (REF 296033) |
| Replacement Valve Type 6534 | 5/3-way CF L (all ports locked), 24 V DC, 275 l/min | 301380 (REF 296036) |
| Dummy Valve / Blind Plate | Valve slot cover plate | 335779 (REF 327614) |
| 5-Pin Spring-Loaded Terminal | Communication & display power connector | 920180 |
| 2-Pin Spring-Loaded Terminal | Pneumatic valve supply power connector | 920442 |
| Fastening Screw Set | M5 x 10 A2 DIN 6912 (10 pcs) for cabinet base | 308661 |
| Height Adapter for 12-Slot Base | AirLINE Quick 12-fold without intermediate feed | 754961 |
| External Retaining Plate | AirLINE Quick 12-fold without intermediate feed | 60005567 |
| Blind Plate for Cabinet Base | AirLINE Quick 12-fold cutout cover plate | 754966 |
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